I was excited when a friend suggested we team up to work on a project. I asked my supervisor(导师) for 1 and he happily agreed. But he advised that we define our expected contributions and credit before starting. I didn't 2 him. I wasn't going to negotiate with a fast friend, and I fully 3 my friend. Everything went 4 ; we successfully completed and published the work as co-authors.
As I worked as an assistant professor. I co-supervised students with my colleagues. I 5 the intellectual burden and was a co-author of the resulting papers. My colleagues and I were 6 with this win-win situation and everything seemed to be going fine 7 moved to another institution.
One day, I happened to see a paper published by a student I had co-supervised. I felt 8 to see that I wasn't listed as an author or even acknowledged. I asked my former colleague about that and he 9 they had just forgotten that due to my minor contribution, but I 10 that. Plenty of other authors of the paper contributed much less to the work. We failed to come to a happy 11 and our relationship was 12 .
I recalled my supervisor's 13 and realized that I should have had clear conversations about authorship with my colleagues in the beginning, 14 our friendships. That is the best 15 to the development of long-term cooperation, which finally protects our personal and professional relationships.